Description This activity bag has a roll-top closure and is fully seam-sealed.| 250 denier polyester tarpaulin with waterproof coating on both sides Detachable, adjustable shoulder sling strap Not intended to be submersible due to roll-top closure Roll top tightly 4 times and clip closed for bbest water-resistant performance Not recommended for electronics without double-bagging inside waterproof pouches Dimensions: 20'h x 12'w, Approx. 1,080 cubic inches; 9'w x 6'd oval-shaped bottom resists rolling To maintain optimal water resistance, special care must be taken when decorating. Low-heat or non-heat decoration suggested and test prior to decorating. Embroidery not recommended. *Bags not intended for use by children 12 and under. Includes a California Prop 65 and social responsibility hangtag .